The diagram shows the graph of y = f(x) and the tangent to the graph
drawn at x = -6.
x=
Use the tangent to work out an estimate for the gradient of the curve at
x = -6.
Y
30
-20
10
I
-109 -8 -7 -6 -5
-3
FO
m
-2
-1
-10
-20
-30
-40
-50
A
--60
320
Zoom
--70
-80
+-90